IndigoBlueWagon
TDIClub Enthusiast, Principal IDParts, Vendor , w/
I've been debating about going to RC4 with my '02 wagon but continue to hesitate. Right now it's running RC3 with PP520s, a lift pump, Oldman intake, TyrolSport SMIC, and a 2.5" exhaust from the CAT back. I've been very happy with the car's performance, but as mod-addicts know, we always want more. However, there are several things I'd like to try before going the VNT-17 RC4 route. There's another thread here asking about CAIs, and I still wonder if a moderately modified TDI can benefit from more air. So here's my plan.
I understand DentSport, a performance shop about 40 minutes from me, has purchased a dyno. I am considering getting a baseline dyno (my car dyno'd at 135 HP and 260 lb/ft. last year in Baltimore, but I need a consistent piece of equipment and operator to make comparisons) and making the following changes.
- GHL downpipe install with a 2.5 inch exhaust, no CAT, and two 'cherry bombs' to manage noise
- DG race pipe or gutted EGR
- CCV mod
- R32 DSG airbox and snorkel (if I can locate one) with a larger MAF holder and intake line and something smoother than the 'dryer hose' that currently goes to the intake.
- PD150 intake or reasonable facsimilie
We all know that the way to more power is more fuel. But if you put in more fuel you need more air to clean up the smoke. A larger turbo will give you more air, but perhaps allowing the VNT-15 at 18.5 PSI better intake and exhaust will increase its flow as well, allowing me to increase fueling. After these steps I can then add an 11mm pump. And if that gives me a big boost in torque I may then add a cam to increase HP.
After getting a baseline, I could probably dyno (a) with the new exhaust (b) with the intake changes, and (c) with the pump changes. Jeff R. tells me the larger MAF holder and hose may require some chip re-tuning as the air will be flowing slower past the MAF. I could get that done before the post-intake dyno.
I've been thinking about this and talking to people about it for a while, but I welcome comments if you have direct experience or data on similar efforts. Opinions only or speculation is less helpful.
I may get the exhaust done this weekend as I already have the downpipe.
I understand DentSport, a performance shop about 40 minutes from me, has purchased a dyno. I am considering getting a baseline dyno (my car dyno'd at 135 HP and 260 lb/ft. last year in Baltimore, but I need a consistent piece of equipment and operator to make comparisons) and making the following changes.
- GHL downpipe install with a 2.5 inch exhaust, no CAT, and two 'cherry bombs' to manage noise
- DG race pipe or gutted EGR
- CCV mod
- R32 DSG airbox and snorkel (if I can locate one) with a larger MAF holder and intake line and something smoother than the 'dryer hose' that currently goes to the intake.
- PD150 intake or reasonable facsimilie
We all know that the way to more power is more fuel. But if you put in more fuel you need more air to clean up the smoke. A larger turbo will give you more air, but perhaps allowing the VNT-15 at 18.5 PSI better intake and exhaust will increase its flow as well, allowing me to increase fueling. After these steps I can then add an 11mm pump. And if that gives me a big boost in torque I may then add a cam to increase HP.
After getting a baseline, I could probably dyno (a) with the new exhaust (b) with the intake changes, and (c) with the pump changes. Jeff R. tells me the larger MAF holder and hose may require some chip re-tuning as the air will be flowing slower past the MAF. I could get that done before the post-intake dyno.
I've been thinking about this and talking to people about it for a while, but I welcome comments if you have direct experience or data on similar efforts. Opinions only or speculation is less helpful.
I may get the exhaust done this weekend as I already have the downpipe.